4Clash Royale card guide
Goblin Drill is a building that burrows to any spot on the map and spawns goblins at regular intervals. Placed near the tower, it builds constant pressure.
Send Goblin Drill next to the enemy tower so its goblins attack the tower. Pair it with Wall Breakers, Bomber or Poison to overwhelm the defense. It's cheap, fast pressure.
Cards that deal with it efficiently:

This card has an evolution. The evolution is active in your deck’s 1st (Evolution) or 3rd (Wild) slot. The Evolution slot unlocks at Arena 3, the Wild slot at Arena 10.
ElixirDeck automatically takes your unlocked evolutions and heroes into account: build your decks.